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de Bethune, The Platinum DB S 8-day Prototype, Platinum DB S 8-day wristwatch with three-dimensional moon phase and power reserve, pre-production prototype, Pièce Unique.
Case: Asymmetrical, platinum, screw-downwinding crown at 12, ogival lugs at 6, hooded lugs at 12, sapphire crystal. Dimensions: 45 x 42.5 mm. Thickness: 11mm. Bracelet: Crocodile with platinum buckle. Dial: Silvered gold chapter ring with blued steel cabochon indexes open at the center to view the movement, inner minute divisions with blued steel five minute markers, three-dimensional moon phase in platinum and blued steel at 6. Blued steel “De Bethune” hands. Movement: Hand-wound, rhodium plated, “fausses-côtes” decoration, 29 jewels, straight line lever escapement, 192 hour (8-day) power reserve sector with blued steel index, monometallic balance, self-compensating flat balance spring, shock protection.
Estimate: 28,000 EUR - 34,000 EUR
Grading system

C D M  
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A relative newcomer to the world of Haute Horlogerie, over the last 15 years De Bethune’s watch makers have designed and manufactured approximately 120 horological masterpieces, making them one of the most exclusive brands on the market today. Since its foundation, the De Bethune manufacture has distinguished itself by its remarkable ability to create mechanical timepieces using the most up-to-date technologies. However, De Bethune has also demonstrated other talents, such as its capacity to integrate contemporary aesthetics. These objects, true masterpieces, are the expression of profound technical knowledge and can be compared to the great masterpieces conceived over the last five centuries of watchmaking.
Only Watch
36,000 EUR